Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755134AbbBGEbo (ORCPT ); Fri, 6 Feb 2015 23:31:44 -0500 Received: from mga03.intel.com ([134.134.136.65]:19219 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751790AbbBGEbn (ORCPT ); Fri, 6 Feb 2015 23:31:43 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="451138282" Date: Fri, 6 Feb 2015 20:31:41 -0800 From: Fengguang Wu To: Trond Myklebust Cc: LKML , LKP Subject: Re: [NFSv4.1] 6ae373394c4: kernel boot crash Message-ID: <20150207043141.GA4394@wfg-t540p.sh.intel.com> References: <20150207024546.GA27323@wfg-t540p.sh.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1925 Lines: 55 Hi Trond, On Fri, Feb 06, 2015 at 10:43:34PM -0500, Trond Myklebust wrote: > On Fri, Feb 6, 2015 at 9:45 PM, Fengguang Wu wrote: > > > > Hi Trond, > > > > We noticed the below kernel crash on > > > > git://git.linux-nfs.org/projects/trondmy/linux-nfs.git testing > > commit 6ae373394c4257bad562817aa60464ff7fe8f9c4 ("NFSv4.1: Ask for no delegation on OPEN if using O_DIRECT") > > > > > > testbox/testcase/testparams: vm-vp-quantal-x86_64/boot/1 > > > > 0e3b137fbf0f4ab9 6ae373394c4257bad562817aa6 > > ---------------- -------------------------- > > fail:runs %reproduction fail:runs > > | | | > > :100 4% 2:46 dmesg.BUG:kernel_test_crashed > > > > The last dmesg lines before the kernel crash are > > > > [ 0.274266] NET: Registered protocol family 1 > > [ 0.275236] RPC: Registered named UNIX socket transport module. > > [ 0.276123] RPC: Registered udp transport module. > > [ 0.276860] RPC: Registered tcp transport module. > > [ 0.277617] RPC: Registered tcp NFSv4.1 backchannel transport module > > > > Thanks, > > Fengguang > > > Hi Fengguang, > > I'm trying to reproduce this issue, but so far no luck. Do you have > any details on the test itself that you could share with me? It looks like a false report, sorry! The real crash dmesg is much longer and it ends here: [ 14.605487] i6300esb: Unexpected close, not stopping watchdog! Which is not relevant to the NFS change at all. The dmesg I looked at happen to be truncated (perhaps by email server) exactly at a NFS line, which treats me to believe it's a good bisect. Cheers, Fengguang -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/